Table I.
Clinical features of patients with and without hyperamylasemia during acute gastroenteritis
| Hyper amylasemia | Normal amylasemia | |||
| Variables | N = 50 (>115 U/L) | N = 457 (≤ 115 U/L) | O.R.a | C.I. 95% b |
| Sex (M/F) | 21/29 | 203/254 | 0.9 | 0.4–7.9 |
| Mean age (range) | 41.8 ± 20.15 (10–80) | 41.4 ± 19.1 (4–92) | (-) | (-) |
| Antibiotic therapy before | 9 (18%) | 63 (13.7%) | 1.3 | 0.5 – 3.0 |
| admission | ||||
| Number | 9.2 ± 5.8 | 7.5 ± 4.7 * | (-) | (-) |
| evacuations/day | ||||
| Duration evacuations | 3.17 ± 3.9 | 3.48 ± 5.3 | (-) | (-) |
| before admission (days) | ||||
| Fever > 38°C | 40 (80.0%) | 258 (56.4%) ** | 3.0 | 1.4–7.0 |
| Vomiting | 36 (72.0%) | 287 (62.8%) | 1.5 | 0.7–3.1 |
| Abdominal pain | 45 (90.0%) | 395 (86.4%) | 1.4 | 0.5–4.7 |
| Severity score: | ||||
| Grade 1 | 10 (6.0%) | 160 (94%) ° | 1.0 | |
| Grade 2 | 36 (11.5%) | 278 (88.5%) ° | 2.1 | |
| Grade 3 | 4 (17.3%) | 19 (82.7%) ° | 2.5 | |
| Dehydration | 9 (18%) | 39 (8.5%) * | 2.0 | 0.8–4.8 |
| Potential predisposing | ||||
| factors | ||||
| Cholelithiasis or | 15 (30.0%) | 49 (10.7%) ** | 3.5 | 1.6–7.3 |
| previous | ||||
| cholecystectomy | ||||
| Chronic gastritis and/or | 11 (22.0%) | 47 (10.2%) * | 2.4 | 1.0–5.3 |
| duodenal ulcer |
* P < 0.05; ** P < 0.01;a, O.R. = Odds ratio; b C.I = Confidence interval 95%, ° Chi-square for linear trend 4.3, P < 0.05.